US20080054767A1 - Direct drive - Google Patents
Direct drive Download PDFInfo
- Publication number
- US20080054767A1 US20080054767A1 US11/835,649 US83564907A US2008054767A1 US 20080054767 A1 US20080054767 A1 US 20080054767A1 US 83564907 A US83564907 A US 83564907A US 2008054767 A1 US2008054767 A1 US 2008054767A1
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- United States
- Prior art keywords
- rotor
- stator
- housing
- direct drive
- connection flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 230000008878 coupling Effects 0.000 claims abstract description 6
- 238000010168 coupling process Methods 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0474—Active magnetic bearings for rotary movement
- F16C32/0493—Active magnetic bearings for rotary movement integrated in an electrodynamic machine, e.g. self-bearing motor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Definitions
- the present invention relates to a direct drive without bearings.
- Patent DE 41 43 597 C2 shows a drive of the type used, e.g., in printing presses. Installation is relatively time-consuming and complicated due to the large number of individual parts used to install the drive on the machine housing and the machine shaft. A great deal of maintenance is also required, because all of these individual parts must be taken disassembled in order to remove or replace the drive. In addition, the bearing system used is subject to wear.
- the object of the present invention is to provide a modular concept for a direct drive that makes it possible to securely install the drive without the use of bearings.
- a direct drive for coupling to a shaft, particularly the shaft of a printing press includes a rotor and a stator; the rotor and stator are located coaxial with each other inside a housing; a first end face of the housing is composed of a connection flange with a central recess, and a second end face of the housing is composed of a removable cover diametrically opposed to the connection flange; the stator is fixedly connected with housing, and the connection flange, rotor, and cover in particular include locking elements, via which the rotor is fixable in position in the radial and/or axial direction inside the housing.
- stator and rotor can be securely supported such that they are safeguarded against each other, e.g., during shipment, thereby preventing them from becoming damaged.
- projections that are coaxial with the rotor axis and stator axis and extend into the housing interior are located on the circumference of the central recess of the connection flange; projections that are coaxial with the rotor axis and the stator axis are also located on the end face of the rotor facing the connection flange; the projections on the connection flange and the rotor are formed such that the rotor and connection flange become preloaded against each other when the rotor is moved axially toward the connection flange using a push rod located on the cover, the preloading ensuring that the rotor and stator are centered relative to each other.
- the entire system can be installed from the B side (drive side) of the motor, while, on the A side (output side), only the housing is installed on a machine wall, using a flange. Bearings are not required, since the distance (air gap) between the stator and the rotor is automatically ensured.
- the inventive concept can also be used directly with motors with very long axial lengths and high tolerances.
- the rotor includes clamp connectors, which enable it to be fixedly connected with a shaft to be driven.
- these connectors fixedly clamp the rotor to the shaft along the entire length of the rotor, or at least on two diametrically opposed sides. It is also advantageous when the clamp connection is accessible preferably from the B side of the motor, which simplifies installation.
- the clamping securely prevents the rotor from wobbling, because the wobbling is caused by radially acting forces of the rotor caused, e.g., by permanent magnets installed on the rotor, or by production tolerances that have the effect of imbalance.
- a sensor is preferably installed on the stator such that it is flexible in the axial direction and rigid in the radial direction. The sensor therefore remains centered and supported coaxially with the rotor and the stator, but it can continue to move axially.
- connection flange includes centering elements located coaxial with the stator and rotor on the installation side, which is diametrically opposed to the projections.
- the connection flange includes recesses for mounting on a support bearing.
- the centering elements help keep the air gap constant, with a desired radial width, while the direct drive is being installed.
- the recesses in the form of bore holes make it possible to easily mount the flange on the machine, e.g., using screws.
- a machine with a shaft to be driven is equipped with a direct drive as recited in one of the preceding Claims; the rotor is clamped on the machine shaft, and the motor housing is mounted on the machine via the connection flange; the rotor is rotatable inside the stator using the shaft.
- the drive requires very little maintenance, and it can be installed or removed very easily and quickly due to the inventive concept. This has a positive effect on the costs of the machine.
- FIG. 1 is a view showing the machine in accordance with the present invention in the secured state.
- FIG. 2 is a view showing the machine in accordance with the present invention in the installed, non-secured state.
- Inventive direct drive 1 shown in FIGS. 1 and 2 includes a rotor 3 and a stator 4 ; rotor 3 and stator 4 are located coaxial with each other inside a housing 5 ; the installation-side end face of housing 5 is composed of a connection flange 6 with a central recess, and the side diametrically opposed to the installation-side end face of housing 5 is composed of a removable cover 7 .
- Stator 4 is fixedly connected with housing 5 .
- Connection flange 6 , cover 7 , and rotor 3 include locking elements 8 a,b,c in the form of rotor-side projections 8 a , flange-side projections 8 b , and rod-shaped locking elements 8 c , which extend between cover 7 and rotor 3 .
- Rotor 3 is fixable in position in the radial and/or axial direction inside housing 5 using locking elements 8 c .
- Flange-side projections 8 b are located coaxial with the rotor axis and the stator axis, and they extend into the interior of housing 5 .
- Rotor 3 includes clamps 10 , by way of which it is fixedly connectable with a shaft 2 to be driven.
- a sensor 11 is installed on stator 4 using a sensor coupling 9 such that it is flexible in the axial direction and rigid in the radial direction.
- Connection flange 6 includes—on the installation side diametrically opposed to projections 8 b —centering elements (centering pins in this case) 12 , which are located coaxial with the stator and the rotor.
- Connection flange 6 also includes recesses for mounting on a support bearing (e.g., bore holes).
- a machine-side shaft 2 that is not a component of direct drive 1 is shown in FIGS. 1 and 2 .
- FIG. 1 shows a difference between FIG. 1 and FIG. 2 .
- rotor 3 is also fixed in position via locking elements 8 a,b,c inside housing 5 and coaxial with stator 4 .
- FIG. 2 shows a rotor 3 that is already mounted on a shaft 2 and is capable of rotating freely.
- the motor does not require any bearings that ensure the presence of the air gap between rotor 3 and stator 4 , because, in the uninstalled state, locking elements 8 a,b,c ensure that correct support is provided. In the installed state, the support is automatically ensured due to the insertion of centering element 12 into corresponding recesses in a support bearing (e.g., the machine wall), and due to the location of rotor 3 on shaft 2 to be driven.
- a support bearing e.g., the machine wall
- the distance between rotor 3 and stator 4 is realized on the A side (installation side) using projections 8 a, b , which are preferably conical in design. Due to the coaxial positioning of projections 8 a, b around the virtual axis of rotation of rotor 3 , it is simultaneously ensured that rotor 3 is centered in stator 4 . On the B side (drive side), the distance between rotor 3 and stator 4 is ensured via locking element 8 c .
- Rotor 3 is therefore capable of being fixed in position in the axial and radial directions inside housing 5 .
- housing 5 which encloses stator 4 and rotor 3 —onto shaft 2 to be driven.
- Rotor 3 which is fixed in position inside housing 5 , is slid onto shaft 2 via the central recess in flange 6 described above, while stator centering elements 12 simultaneously engage in the corresponding recesses on the machine side, so that stator 4 and rotor 3 are retained coaxially and with clearance.
- the entire system is guided automatically using centering elements 12 and shaft 2 .
- Sensor coupling 9 is movable in the axial direction and fixes sensor 11 in position only in the radial direction.
- sensor 11 which is located on housing 5 and rotor 3 , can also move axially with rotor 3 .
- Disassembly takes place in the reverse order, i.e., loosen housing flange 6 , fix rotor 3 in position radially by pulling stator 4 axially outward, loosen clamp connection 10 on rotor 3 , and insert B-side locking element 8 c into the bore holes in pre-installed cover 7 ; locking element 8 c is also inserted into the bore holes in rotor 3 provided especially for this purpose.
- Locking elements 8 c perform two functions. They serve to fix rotor 3 in position in the radial and axial directions inside housing 5 , e.g., during shipment. They also make it easier to remove housing 5 by exerting axially-directed force onto rotor 3 .
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Manufacture Of Motors, Generators (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Rotary Pumps (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
- The invention described and claimed hereinbelow is also described in German
Patent Application DE 10 2006 040 611.7 filed on Aug. 30, 2006. This German Patent Application, whose subject matter is incorporated here by reference, provides the basis for a claim of priority of invention under 35 U.S.C. 119(a)-(d). - The present invention relates to a direct drive without bearings.
- Patent DE 41 43 597 C2 shows a drive of the type used, e.g., in printing presses. Installation is relatively time-consuming and complicated due to the large number of individual parts used to install the drive on the machine housing and the machine shaft. A great deal of maintenance is also required, because all of these individual parts must be taken disassembled in order to remove or replace the drive. In addition, the bearing system used is subject to wear.
- The object of the present invention is to provide a modular concept for a direct drive that makes it possible to securely install the drive without the use of bearings.
- This object is attained by the present invention by using a direct drive for coupling to a shaft, particularly the shaft of a printing press; the drive includes a rotor and a stator; the rotor and stator are located coaxial with each other inside a housing; a first end face of the housing is composed of a connection flange with a central recess, and a second end face of the housing is composed of a removable cover diametrically opposed to the connection flange; the stator is fixedly connected with housing, and the connection flange, rotor, and cover in particular include locking elements, via which the rotor is fixable in position in the radial and/or axial direction inside the housing.
- The advantage of this solution is obvious. The stator and rotor can be securely supported such that they are safeguarded against each other, e.g., during shipment, thereby preventing them from becoming damaged.
- Preferably, projections that are coaxial with the rotor axis and stator axis and extend into the housing interior are located on the circumference of the central recess of the connection flange; projections that are coaxial with the rotor axis and the stator axis are also located on the end face of the rotor facing the connection flange; the projections on the connection flange and the rotor are formed such that the rotor and connection flange become preloaded against each other when the rotor is moved axially toward the connection flange using a push rod located on the cover, the preloading ensuring that the rotor and stator are centered relative to each other.
- Since the rotor and the stator are always located coaxial with each other inside the housing with an even amount of clearance (air gap) between them, damage is prevented, particularly to the surfaces of the rotor and/or stator. The entire system can be installed from the B side (drive side) of the motor, while, on the A side (output side), only the housing is installed on a machine wall, using a flange. Bearings are not required, since the distance (air gap) between the stator and the rotor is automatically ensured. The inventive concept can also be used directly with motors with very long axial lengths and high tolerances.
- Particularly preferably, the rotor includes clamp connectors, which enable it to be fixedly connected with a shaft to be driven. Preferably, these connectors fixedly clamp the rotor to the shaft along the entire length of the rotor, or at least on two diametrically opposed sides. It is also advantageous when the clamp connection is accessible preferably from the B side of the motor, which simplifies installation. The clamping securely prevents the rotor from wobbling, because the wobbling is caused by radially acting forces of the rotor caused, e.g., by permanent magnets installed on the rotor, or by production tolerances that have the effect of imbalance.
- In addition, a sensor is preferably installed on the stator such that it is flexible in the axial direction and rigid in the radial direction. The sensor therefore remains centered and supported coaxially with the rotor and the stator, but it can continue to move axially.
- Particularly preferably, the connection flange includes centering elements located coaxial with the stator and rotor on the installation side, which is diametrically opposed to the projections. The connection flange includes recesses for mounting on a support bearing. The centering elements help keep the air gap constant, with a desired radial width, while the direct drive is being installed. The recesses in the form of bore holes make it possible to easily mount the flange on the machine, e.g., using screws.
- Advantageously, a machine with a shaft to be driven is equipped with a direct drive as recited in one of the preceding Claims; the rotor is clamped on the machine shaft, and the motor housing is mounted on the machine via the connection flange; the rotor is rotatable inside the stator using the shaft. The drive requires very little maintenance, and it can be installed or removed very easily and quickly due to the inventive concept. This has a positive effect on the costs of the machine.
- The novel features which are considered as characteristic for the present invention are set forth in particular in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.
-
FIG. 1 is a view showing the machine in accordance with the present invention in the secured state. -
FIG. 2 is a view showing the machine in accordance with the present invention in the installed, non-secured state. - Inventive direct drive 1 shown in
FIGS. 1 and 2 includes arotor 3 and astator 4;rotor 3 andstator 4 are located coaxial with each other inside ahousing 5; the installation-side end face ofhousing 5 is composed of aconnection flange 6 with a central recess, and the side diametrically opposed to the installation-side end face ofhousing 5 is composed of a removable cover 7. -
Stator 4 is fixedly connected withhousing 5.Connection flange 6, cover 7, androtor 3 includelocking elements 8 a,b,c in the form of rotor-side projections 8 a, flange-side projections 8 b, and rod-shaped locking elements 8 c, which extend between cover 7 androtor 3.Rotor 3 is fixable in position in the radial and/or axial direction insidehousing 5 usinglocking elements 8 c. Flange-side projections 8 b are located coaxial with the rotor axis and the stator axis, and they extend into the interior ofhousing 5. -
Rotor 3 includesclamps 10, by way of which it is fixedly connectable with ashaft 2 to be driven. Asensor 11 is installed onstator 4 using asensor coupling 9 such that it is flexible in the axial direction and rigid in the radial direction.Connection flange 6 includes—on the installation side diametrically opposed toprojections 8 b—centering elements (centering pins in this case) 12, which are located coaxial with the stator and the rotor.Connection flange 6 also includes recesses for mounting on a support bearing (e.g., bore holes). - A machine-
side shaft 2 that is not a component of direct drive 1 is shown inFIGS. 1 and 2 . - The difference between
FIG. 1 andFIG. 2 is that, inFIG. 1 ,rotor 3 is also fixed in position vialocking elements 8 a,b,c insidehousing 5 and coaxial withstator 4.FIG. 2 , however, shows arotor 3 that is already mounted on ashaft 2 and is capable of rotating freely. - The ease with which inventive direct drive 1 can be installed will be described below.
- The motor does not require any bearings that ensure the presence of the air gap between
rotor 3 andstator 4, because, in the uninstalled state,locking elements 8 a,b,c ensure that correct support is provided. In the installed state, the support is automatically ensured due to the insertion of centeringelement 12 into corresponding recesses in a support bearing (e.g., the machine wall), and due to the location ofrotor 3 onshaft 2 to be driven. - In the uninstalled state (
FIG. 1 , support, shipping), the distance betweenrotor 3 andstator 4 is realized on the A side (installation side) usingprojections 8 a, b, which are preferably conical in design. Due to the coaxial positioning ofprojections 8 a, b around the virtual axis of rotation ofrotor 3, it is simultaneously ensured thatrotor 3 is centered instator 4. On the B side (drive side), the distance betweenrotor 3 andstator 4 is ensured vialocking element 8 c. It is arod 8 c, which is inserted from the outside through a bore hole in cover plate 7 into a recess inrotor 3 and makes possible an axial displacement ofrotor 3 in the direction towardprojections 8 b whenhousing 5 is closed.Rotor 3 is therefore capable of being fixed in position in the axial and radial directions insidehousing 5. - To install the direct drive, it is only necessary to slide
housing 5—which enclosesstator 4 androtor 3—ontoshaft 2 to be driven.Rotor 3, which is fixed in position insidehousing 5, is slid ontoshaft 2 via the central recess inflange 6 described above, whilestator centering elements 12 simultaneously engage in the corresponding recesses on the machine side, so thatstator 4 androtor 3 are retained coaxially and with clearance. The entire system is guided automatically usingcentering elements 12 andshaft 2. - After B-side cover 7 is removed, the clamp—which is only accessible from the B side—is tightened, thereby clamping
rotor 3 toshaft 2. Subsequently,housing 5 is displaced axially toward the support bearing and is screwed in place there.Stator 4 changes its position relative torotor 3. Whilehousing 5 approaches the machine in this manner, A-sideprojections rotor 3 clamped onshaft 2 can rotate freely. The dimensions of the entire system are chosen such that, afterhousing 5 is screwed onto the machine,rotor 3 is covered entirely by the active parts ofstator 4 and is free to rotate, thereby ensuring the maximum torque. -
Sensor coupling 9 is movable in the axial direction and fixessensor 11 in position only in the radial direction. As a result,sensor 11, which is located onhousing 5 androtor 3, can also move axially withrotor 3. Disassembly takes place in the reverse order, i.e., loosenhousing flange 6, fixrotor 3 in position radially by pullingstator 4 axially outward, loosenclamp connection 10 onrotor 3, and insert B-side locking element 8 c into the bore holes in pre-installed cover 7; lockingelement 8 c is also inserted into the bore holes inrotor 3 provided especially for this purpose. Lockingelements 8 c perform two functions. They serve to fixrotor 3 in position in the radial and axial directions insidehousing 5, e.g., during shipment. They also make it easier to removehousing 5 by exerting axially-directed force ontorotor 3. - It will be understood that each of the elements described above, or two or more together, may also find a useful application in other types of constructions differing from the type described above.
- While the invention has been illustrated and described as embodied in a direct drive, it is not intended to be limited to the details shown, since various modifications and structural changes may be made without departing in any way from the spirit of the present invention.
- Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention.
Claims (8)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006040611A DE102006040611A1 (en) | 2006-08-30 | 2006-08-30 | direct drive |
DE102006040611.7 | 2006-08-30 | ||
DE102006040611 | 2006-08-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20080054767A1 true US20080054767A1 (en) | 2008-03-06 |
US7671496B2 US7671496B2 (en) | 2010-03-02 |
Family
ID=38680595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/835,649 Active 2028-02-13 US7671496B2 (en) | 2006-08-30 | 2007-08-08 | Direct drive |
Country Status (5)
Country | Link |
---|---|
US (1) | US7671496B2 (en) |
EP (1) | EP1895641B1 (en) |
CN (1) | CN101135345B (en) |
BR (1) | BRPI0703640B1 (en) |
DE (1) | DE102006040611A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014017117A1 (en) | 2013-11-22 | 2015-05-28 | Scania Cv Ab | Device and method for displacing an electric motor in a motor vehicle |
US20150318754A1 (en) * | 2013-04-15 | 2015-11-05 | Mitsubishi Electric Corporation | Rotor-holding structure of rotating electrical machine for hybrid vehicle |
CN107565748A (en) * | 2017-10-31 | 2018-01-09 | 佛山德玛特智能装备科技有限公司 | A kind of half frame direct driving motor and method |
US20180069444A1 (en) * | 2015-03-19 | 2018-03-08 | Sew-Eurodrive Gmbh & Co. Kg | Electric motor |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK2063117T3 (en) * | 2007-11-26 | 2016-12-19 | Siemens Ag | A device for a direct drive generator, a direct drive generator, turbine and the method for mounting a generator |
DE102008064497A1 (en) * | 2008-12-23 | 2010-06-24 | Siemens Aktiengesellschaft | Electric machine with rotor support shield |
US7944077B2 (en) * | 2009-01-14 | 2011-05-17 | Amsc Windtec Gmbh | Generator, nacelle, and mounting method of a nacelle of a wind energy converter |
DE102010024962B4 (en) * | 2010-06-24 | 2022-12-01 | Minebea Mitsumi Inc. | Drive motor for liquid pump |
AT512325B1 (en) * | 2011-12-30 | 2014-03-15 | Traktionssysteme Austria Gmbh | ELECTRICAL MACHINE |
DE102014010918B4 (en) * | 2014-07-28 | 2019-11-14 | Sew-Eurodrive Gmbh & Co Kg | An electric motor comprising a stator and a rotor, and method of manufacturing an electric motor |
DE102014012348A1 (en) * | 2014-08-25 | 2016-02-25 | Sew-Eurodrive Gmbh & Co Kg | An electric motor comprising a stator and a rotor, and method of manufacturing an electric motor driven machine |
DE102014013732A1 (en) * | 2014-09-22 | 2016-03-24 | Sew-Eurodrive Gmbh & Co Kg | Drive arrangement with sensor |
DE102014116242A1 (en) * | 2014-11-07 | 2016-05-12 | Uts Biogastechnik Gmbh | Stirring device for a fermenter of a biogas plant |
DE102015222792A1 (en) * | 2015-11-18 | 2017-05-18 | Baumüller Nürnberg GmbH | motor assembly |
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DE4143597C5 (en) | 1991-11-22 | 2008-06-26 | Baumüller Nürnberg GmbH | Printing machine with at least one electric motor driven, axially adjustable cylinder or other rotary body |
CN2150662Y (en) * | 1993-01-16 | 1993-12-22 | 天津市起重电机厂 | Shock-resistant motor |
JPH11103555A (en) * | 1997-09-29 | 1999-04-13 | Toshiba Corp | Dynamic-pressure bearing type motor, and transporting method and apparatus thereof |
-
2006
- 2006-08-30 DE DE102006040611A patent/DE102006040611A1/en not_active Ceased
-
2007
- 2007-05-24 EP EP07010326.2A patent/EP1895641B1/en not_active Not-in-force
- 2007-08-08 US US11/835,649 patent/US7671496B2/en active Active
- 2007-08-28 BR BRPI0703640A patent/BRPI0703640B1/en not_active IP Right Cessation
- 2007-08-30 CN CN2007101471473A patent/CN101135345B/en not_active Expired - Fee Related
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US4060745A (en) * | 1976-03-25 | 1977-11-29 | Sundstrand Corporation | Structure for attaching a permanent magnet to a rotating shaft |
US5952746A (en) * | 1997-05-22 | 1999-09-14 | Still Gmbh | Electrical machine and method for mounting such electrical machine on a unit |
US6247407B1 (en) * | 1998-07-31 | 2001-06-19 | Heidelberger Druckmaschinen Ag | Printing press having motor with an external rotor |
US6462459B1 (en) * | 1999-07-01 | 2002-10-08 | Kirk's Automotive, Inc. | Generator/alternator remanufacturing kit apparatus |
US20020121819A1 (en) * | 2001-02-05 | 2002-09-05 | Reinhard Beatty | Design for frameless cartridge motors |
US20030213087A1 (en) * | 2002-05-15 | 2003-11-20 | Arman Moein | Direct drive windshield wiper assembly |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150318754A1 (en) * | 2013-04-15 | 2015-11-05 | Mitsubishi Electric Corporation | Rotor-holding structure of rotating electrical machine for hybrid vehicle |
US9906088B2 (en) * | 2013-04-15 | 2018-02-27 | Mitsubishi Electric Corporation | Rotor-holding structure of rotating electrical machine for hybrid vehicle |
DE102014017117A1 (en) | 2013-11-22 | 2015-05-28 | Scania Cv Ab | Device and method for displacing an electric motor in a motor vehicle |
US20180069444A1 (en) * | 2015-03-19 | 2018-03-08 | Sew-Eurodrive Gmbh & Co. Kg | Electric motor |
US10797549B2 (en) * | 2015-03-19 | 2020-10-06 | Sew-Eurodrive Gmbh & Co. Kg | Electric motor |
CN107565748A (en) * | 2017-10-31 | 2018-01-09 | 佛山德玛特智能装备科技有限公司 | A kind of half frame direct driving motor and method |
Also Published As
Publication number | Publication date |
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CN101135345A (en) | 2008-03-05 |
EP1895641B1 (en) | 2017-07-12 |
DE102006040611A1 (en) | 2008-03-06 |
CN101135345B (en) | 2011-04-06 |
EP1895641A2 (en) | 2008-03-05 |
BRPI0703640B1 (en) | 2018-09-25 |
BRPI0703640A (en) | 2008-04-22 |
US7671496B2 (en) | 2010-03-02 |
EP1895641A3 (en) | 2016-09-14 |
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